Yes I am running as a root process.
On 6/14/06, John Francini <email@hidden> wrote:
> /sbin/shutdown must be run by root. Running as a user with
> Administrator privilege is not sufficient.
>
> Is the parent process running as root or setuid to root?
>
> John
>
>
> On 14 Jun 2006, at 15:15, matt jaffa wrote:
>
> > Ok so I admit I read it wrong regarding the return status, always got
> > 0 for everything else I executed so I assumed 0 good and only -1 was
> > returned if bad.
> >
> > soo I am getting 32256 by executing
system("/sbin/shutdown -r
> > now");
> >
> >
> > On 6/14/06, John Francini <email@hidden > wrote:
> >> Rather than having people say "Yes, I did, No, I didn't", let's cut
> >> the Gordian knot.
> >>
> >> The man page on 10.4.6 reads as follows:
> >>
> >> SYSTEM(3) BSD Library Functions Manual
> >> SYSTEM(3)
> >>
> >> NAME
> >> system -- pass a command to the shell
> >>
> >> LIBRARY
> >> Standard C Library (libc, -lc)
> >>
> >> SYNOPSIS
> >> #include <stdlib.h>
> >>
> >> int
> >> system(const char *string);
> >>
> >> DESCRIPTION
> >> The system() function hands the argument string to the command
> >> inter-
> >> preter sh(1). The calling process waits for the shell to
> >> finish execut-
> >> ing the command, ignoring SIGINT and SIGQUIT, and blocking
> >> SIGCHLD.
> >>
> >> If string is a NULL pointer, system() will return non-zero if
> >> the command
> >> interpreter sh(1) is available, and zero if it is not.
> >>
> >> The system() function returns the exit status of the shell as
> >> returned by
> >> waitpid(2), or -1 if an error occurred when invoking fork(2) or
> >> waitpid(2). A return value of 127 means the execution of the
> >> shell
> >> failed.
> >>
> >> SEE ALSO
> >> sh(1), execve(2), fork(2), waitpid(2), popen(3)
> >>
> >> STANDARDS
> >> The system() function conforms to ISO/IEC 9899:1990 (``ISO
> >> C90'') and is
> >> expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
> >>
> >> BSD June 4,
> >> 1993 BSD
> >>
> >> Given this, your error of 32256 is being generated by the shell --
> >> meaning the command you ran exited with that status.
> >>
> >> It might be more helpful if you can give a concise example of the
> >> specific code that is failing.
> >>
> >> John Francini
> >>
> >>
> >>
> >>
> >>
> >> On 14 Jun 2006, at 14:12, Matthew Jaffa wrote:
> >>
> >> > Yes I read the man page, and it says -1 if not successful, 0 if
> >> > successful, and returns non-zero if the command you pass in is
> >> > NULL, but I know I didn't pass in null cause I log it right before
> >> > I execute the command.
> >> >
> >> > Matt
> >> >
> >> >
> >> >> From: "Justin C. Walker" < email@hidden>
> >> >> To: "email@hidden list" <email@hidden >
> >> >> Subject: Re: system command returning unknown error.
> >> >> Date: Wed, 14 Jun 2006 10:38:46 -0700
> >> >>
> >> >>
> >> >> On Jun 14, 2006, at 10:30 , matt jaffa wrote:
> >> >>
> >> >>> Hi,
> >> >>>
> >> >>> I am calling system(char* command) in my .cpp file. But this is
> >> >>> returning
> >> >>> error 32256. This error no. is not documented so I don't know
> >> >>> why it is not
> >> >>> working.
> >> >>> Anyone seen this error number before and know what it means.
> >> >>
> >> >> Did you read the man page for the 'system()' call?
> >> >>
> >> >> Regards,
> >> >>
> >> >> Justin
> >> >>
> >> >> --
> >> >> Justin C. Walker, Curmudgeon at Large
> >> >> Director
> >> >> Institute for the Enhancement of the Director's Income
> >> >> -----------
> >> >> Nobody knows the trouble I've been
> >> >> -----------
> >> >>
> >> >>
> >> >>
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> >> >>
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> >> >
> >> >
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